臭氧-曝气生物滤池-深床滤池用于印染废水脱氮处理的工程实例  

Case Study of Nitrogen Removal for Textile Wastewater Using Ozonation-Biological Aerated Filter-Deep Bed Denitrification Filter Combination

作　　者：杜希 陈浩 贾力强 邱孝群 张玉高 谢卫东 曾织林 严素霞 DU Xi;CHEN Hao;JIA Li-qiang;QIU Xiao-qun;ZHANG Yu-gao;XIE Wei-dong;ZENG Zhi-lin;YAN Su-xia(Guangdong Esquel Textiles Co.Ltd.,Guangdong,Foshan 528500,China)

机构地区：[1]广东溢达纺织有限公司,广东佛山528500

出　　处：《环境科技》2018年第3期46-49,共4页Environmental Science and Technology

摘　　要：针对目前许多纺织印染企业由于节水项目的开展以及引入大量含氮的整理用化工料造成废水总氮浓度高,污水厂出水不能完全满足GB 4287—2012《纺织染整工业水污染物排放标准》对纺织印染行业废水排放的要求,通过采用臭氧-曝气生物滤池对X公司印染废水二级出水进行深度处理及硝化反应,再通过深床滤池进行反硝化来实现废水中总氮的去除。试验表明:在曝气生物滤池在进水温度为32℃,停留时间为90 min的条件下,最大进水氨氮负荷可以达到0.43 kg/(m^3·d)。深床滤池在停留时间为40 min,以乙酸钠为外加碳源的条件下,最大进水总氮负荷可达到0.53 kg/(m^3·d)。深床滤池可确保最终排水中的总氮完全满足GB 4287—2012中表3的排放要求。Due to the water saving project implementation and nitrogen containing auxiliary introduction in textile industries,the total nitrogen concentration in wastewater is hard to satisfy the stringent regulation of GB 4287-2012"Wastewater Pollutants Discharge Standard for Textile Printing Industry".In this study,ozonation-Biological Aerated Filter(BAF)was applied to deep treat and nitrify the secondary effluent and Deep Bed Denitrification Filter(DBDF)was introduced to remove the nitrified-nitrogen.It was found that the maximum ammonia nitrogen loading rate is 0.43 kg/(m3·d)for BAF at 32℃with retention time of 90 min.The maximum nitrogen loading rate is 0.53 kg/(m3·d)for DBDF with retention time of 90 min and sodium acetate as carbon source.After these treatments,the total nitrogen(TN)concentration in the effluent can reach the requirement of table 3 in GB 4287-2012.

关 键 词：纺织 废水 臭氧 曝气生物滤池 深床滤池 总氮 

分 类 号：X7[环境科学与工程—环境工程]